198 PHOTOGRAPHIC FACTS AND FORMULAS 
Sodium carbonate 0.2 g 1.5 gr. 
Ammonium bromide 0.2 g 1.5 ge: 
Water 2400 ccm 38Y4 oz. 
Melt at 30° C. (86° F.), and saturate the fabric. This can 
also be used for paper, and gives from red to black tones, 
according to exposure and developer. 
